• 제목/요약/키워드: fire design

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내화설계법에 따른 철골조 아파트의 내화피복비용 연구 (Cost Analysis for Fire Protection on Structural Members of Residential Steel Building using Fire Engineering Design)

  • 권인규;정영진
    • 한국화재소방학회논문지
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    • 제24권1호
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    • pp.81-89
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    • 2010
  • 건축물의 내화성능은 화재의 피해를 최소화하기 위해 요구되고 있으며, 건축물의 용도 및 층수 등에 따라 일률적으로 정해지고 있으나, 실제 발생되는 건축물 화재의 크기와 구조부재의 응력, 변형은 매우 다양한 조건에 의해 달라진다. 스웨덴, 영국, 뉴질랜드, 호주 및 일본 등의 국가에서는 건축물의 화재크기에 영향을 미칠 수 있는 여러 변수를 공학적인 수단을 활용하여 구조체 안전성을 평가하는 공학적 내화설계를 사용하고 있다. 본 논문은 공학적 내화설계의 경제적 효과를 검증하기 위하여 21층의 철골조 공동주택을 공학적 내화설계와 사양적 내화설계에 의한 내화피복비용을 비교분석하였으며, 그 결과 공학적 내화설계절차에 의한 철골조 아파트의 기둥부재 및 보부재는 무내화피복으로 내화성능을 만족하였으며, 내화피복비용 절감효과는 약 90% 수준으로 나타났다.

성능위주설계에서 화재위험성 예측 과정의 문제점 및 개선방안 (The Problems and Improvements of Process to Predict Fire Risk of a Building in Performance Based Design)

  • 이세명
    • 대한안전경영과학회지
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    • 제16권3호
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    • pp.145-154
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    • 2014
  • Performance based design(PBD) is the method to make a fire safety design against them after predicting the factors of fire risk in a building. Therefore, predicting fire risk in a building is very important process in PBD. For predicting fire risk of a building, an engineer of PBD must consider various factors such as ignition location, ignition point, ignition source, first ignited item, second ignited item, flash over, the state of door and fire suppression system. But, it is difficult to trust fire safety capacity of the design because the process in Korea' PBD is unprofessional and unreasonable. This paper had surveyed some cases of PBD that had been made in Korea to find the problems of the process to predict fire risk. And it have proposed the improvements of process to predict fire risk of a building.

건축물 화재시 필요내화 시간 산정 및 간이식 도출 (Calculation of Fire-resisting Time and Extraction of Simple Transplants in the Event of a Building Fire)

  • 김윤성;한지우;김혜원;진승현;이병흔;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2020년도 가을 학술논문 발표대회
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    • pp.59-60
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    • 2020
  • Large fires continue to spread throughout the building, including the fire in Uijeongbu in 2015, the fire in Jecheon in 2017, and the fire in Miryang in 2018. According to the above fire case investigation, major problems were the fire resistance performance of compartment members such as fire doors, the fire spread due to damage to exterior wall openings, and smoke spread through vertical openings. However, in South Korea, only specification design is implemented for buildings that are not subject to performance design. In addition, the analysis of the fire resistance performance standards of building members in the specification design showed that fire doors were not specified in detail for 60 minutes of insulation performance and 60 minutes of fire resistance performance of E/V doors, limiting the prevention of fire spread. Therefore, the purpose of this research is to prepare measures to prevent the spread of fire by presenting simple transplants for calculating the required fire time according to the architectural design conditions for the performance design of the components of the fire room according to the purpose of use of the front of the building.

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사고 영향 분석을 이용한 성능위주의 내화설계 (Performance Based Design of Passive Fire Protection Using Consequence Analysis)

  • 한동훈;이종호
    • 한국안전학회지
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    • 제19권1호
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    • pp.102-107
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    • 2004
  • Performance based design is a recent evolutionary step in the process of designing fire protection systems. In essence, it is a logical design process resulting in a solution that achieves a specified performance. Sometimes the prescriptive solutions presented in various codes and standards are too expensive or inflexible. Often the solutions do not and enables optimization of a solution for cost and function. In this study, performance based design was carried out to determine the extent of passive fire protection for oil terminal facilities. The results of performance based design were compared with those of prescriptive code based design. Performance based design is not always more economic than prescriptive code based design but provides more reliable and effective design that is fit for the purpose.

APPLICATION OF FIRE RESEARCH TO BUILDING FIRE SAFETY DESIGN - CURRENT BENEFITS AND FUTURE NEEDS

  • Bressington, Peter;Johnson, Peter
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
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    • pp.392-403
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    • 1997
  • There is a strong international move towards performance based fire regulations for buildings with New Zealand and Australia at the forefront of research in this fold. The reform of regulations is thought to offer more innovation and flexibility in building design and greater cost effectiveness in construction. An important part of the research in this area is related to the development of agreed approaches to fire safety design, such as the Fire Code Reform Centre's "Fire Engineering Guidelines" or New Zealand's "Fire Engineering Design Guide". Such design process documents have incorporated or referenced much of the latest research in areas such as: tenability criteria fire compartment models egress models risk assessment. Use of such design guidelines or equivalents in major projects in countries such as Hong Kong and Australia have highlighted where fro engineering can offer real benefits to building designers and ultimately building owners and operators. However, there is still much research to be done and use of a systematic, logical design approach clearly identifies where design data or modelling techniques are still urgently required. Such areas are: fire growth rates and peak heat release rates for non-residential occupancies pre-movement times related to egress experimental validation and limits of applicability of CFD and other compartment Ire models probability/reliability data on fire protection systems for risk based analysis. Examples from case studies will be shown where lack of such research and poor judgement can lead to inferior design solutions or where unnecessarily conservative designs can lead to cost excesses. In summary, the link between Ire engineering designers and the research community is very important to highlight areas of fire research that will have the most benefit to the building and construction industry.nstruction industry.

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건축구조물의 설계화재정립을 위한 실규모 화재실험 및 분석 (Experiment and Analysis of Real-Scale Fire Test for Establishment of Design Fire in Building Structures)

  • 서동구;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2014년도 추계 학술논문 발표대회
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    • pp.119-120
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    • 2014
  • In this study, we looked into the method to establish fire growth rate by buildings use for growing fire at the beginning of a fire considering the characteristics of the combustibles in a performance-based design. Actual conditions survey and literature review were carried out for the fire load and exposed surface area of combustibles to establish design fire by domestic building use. As a results, a simplified prediction equation of fire growth rate which depends on fire load and weight of combustibles could be derived by calculating the relation between the fire load and the fire growth rate of an initial fire through investigation of combustibles by domestic building use.Also, as a result of analyzing the placement of combustibles and location of the ignition source, it was found that the influence of the materials of the combustibles and the materials of the combustibles adjacent to the ignition source is big. Though 4 different experiments were carried out for the evaluation, the result of comparing the findings with those of FGR model showed that the fire growth rate was similarly derived.

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A Study on the fire-resistance of concrete-filled steel square tube columns without fire protection under constant central axial loads

  • Park, Su-Hee;Choi, Sung-Mo;Chung, Kyung-Soo
    • Steel and Composite Structures
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    • 제8권6호
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    • pp.491-510
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    • 2008
  • This paper presents a plan and guidelines that were drawn for Korean based research carried out on the fire-resistance of CFT columns. This research was carried out by reviewing the Korean regulations related to the fire-resistance of CFT columns and examining studies which had been made in Korea as well as overseas. The first phase of the study plan was to compare the fire-resistance of square CFT columns without fire protection (obtained through fire-resistance tests and numerical analyses) with estimated values (obtained through fire-resistance design formulas proposed in Korea and overseas). This comparison provided conclusions as outlined below. Fire-resistance tests conducted in this study proved that, when the actual design load is taken into consideration, square CFT columns without fire protection are able to resist a fire for more than one hour. A comparison was made of test and analysis results with the fire-resistance time based on the AIJ code, the AISC design formula and the estimation formula suggested for Korea. The results of this comparison showed that the test and analysis results for specimens SAH1, SAH2-1, SAH2-2 and SAH3 were almost identical with the AIJ code, the AISC design formula and estimation formula. For specimens SAH4 and SAH5, the estimation formula was more conservative than the AIJ code and the AISC design formula. It was necessary to identify the factors that have an influence on the fire-resistance of CFT columns without fire protection and to draw fire-resistance design formulas for these columns. To achieve this, it is proposed that numerical analyses and tests be conducted in order to evaluate the fire-resistance of circular CFT columns, the influence of eccentricity existing as an additional factor and the influence of the slenderness ratio of the columns. It is also suggested that the overall behavior of CFT structures without fire protection within a fire be evaluated through analysis simulation.

건축물의 성능적 내화설계 평가 요소기술 개발 (Development of the Evaluation Element for Fire Engineering Design)

  • 권인규;김흥열
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2009년도 춘계학술논문발표회 논문집
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    • pp.410-414
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    • 2009
  • Performance based fire engineering design should be developed through basic survey and fundamental element such as analytic program for evaluation of fire performance of building. The basic elements will be expressed to the surveys of the structures of building laws, regulation and the fundamental elements consist of technical guidances contained design fires, heat analysis, determination of structural performance.

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국내 PBD 기반 설계를 위한 강구조 구조내화설계 구축방향에 관한 연구(I) (A Research Direction of Structural Fire Resistance Design of Steel Structures for Recommendation of PBD in Korea)

  • 권영진;이재영
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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    • pp.229-234
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    • 2008
  • Performance based fire engineering design is being adopted around the world as a rationed means of providing efficient and effective fire safety in Building. This development is being supported by the adoption of performance based codes which specify the objective and minimum performance requirements for fire safety traditional design for fire safety which is still practiced in many countries, relies on "prescriptive" codes which specify how a building is to be built, which no statement of objective and little or no opportunity to offer more rational alterative design. It is the aim of this study to investigate and analyze the research direction of structural fire resistance design of steel structures for recommendation of PBD in Korea.

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On the Chinese Code on fire safety design of steel building structures

  • Li, G.Q.;Guo, S.X.;Jiang, S.C.
    • Steel and Composite Structures
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    • 제5권5호
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    • pp.395-405
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    • 2005
  • This work introduces to the international scientific community the Chinese Code on fire safety design of steel building structures. The aim of the Code is to prevent the structure of a steel building subjected to fire from collapsing, ensure safe evacuation of building occupants, and reduce the cost for repairing the damages of the structure caused by fire. The main contents of the Code is presented in this paper, including the fire duration requirements of structural components, fundamental requirements on fire safety design of steel components, temperature increasing of atmosphere and components in fire, loading effect and capacity of various components in fire, and procedure for fire-resistant design of steel components. The analytical approach is employed in the Code and the effectiveness of the Code is validated through experiments.